Yep, the dietary recommendations have been consistent for decades at this point. Dairy, meat, sugars and excessive oils are not great for us. A little in moderation is fine, that is a lot lower than what most people think.
But it isnt pushed hard because it is difficult to steer the ship of humanity. Like how doctors will say "lose some weight" but they arent really expecting miracles on it as they know the battle that is.
I eat enormous amounts of dairy and red meat and recently I had abdominal surgery and the doctor afterwards confirmed I was in very good shape and had no signs at all of fatty liver and very little visceral fat generally.
I eat around a pound of beef a day, a gallon of yogurt a week, and almost everything (eg oatmeal) is made with copious amounts of butter.
I think unless you know something specific about your genetics, just eat plain natural foods people have been eating for millennia and you will be perfectly fine. Basically, buy plain meat, vegetables, grains, and dairy and prepare them yourself. Don’t eat preservatives, corn syrups, or novel vegetable oils like canola. Maybe they’re fine but there’s no reason to risk it. Also do your best to make sure what you eat followed the same rule; eg my beef was grass fed and finished and was not fed skittles in a feedlot. Diet affects animal meat as well, just as it does us.
This is good advise to get behind. I do feel like a lot of the optimal dietary advice is far to hard lined and that a better path really is just whole foods in moderation.
Dietary recommendations have fluctuated widely for decades, and still differ substantially between sources. So far there is zero direct evidence that meat consumption causes fatty liver disease; I mean it's possible but we just don't know one way or the other. The only real data we have comes from low-quality observational studies (basically junk science).
If someone wants to try limiting meat consumption as an "n=1" experiment to see how it affects their body composition and other biomarkers then go ahead. Just don't expect a major impact from that one factor.
Generally speaking, I actually don't think I recall much of a link between meat and fatty liver, it always seemed to be closer linked to highly refined sugars and possibly high levels of dairy but less of a link there.
But it isnt pushed hard because it is difficult to steer the ship of humanity. Like how doctors will say "lose some weight" but they arent really expecting miracles on it as they know the battle that is.